Unlike their fellow activists at PETA, whose efforts at employing video games for their cause usually just cause palms to smack against foreheads, Greenpeace's new game gets it. It's smart. And pretty good to boot.

With an awesome name - Shark vs Mermaid Death Squad - it's basically a Pac-Man clone where you play as animals threatened by tuna fishing, your aim being to free tuna trapped in cans along the aisles of a supermarket.

Simple, then, but the visuals are great, as is the soundtrack. Get on it.